Unsurprisingly, Hans Zimmer has been hired to score Angels and Demons for director Ron Howard, following up their smash hit film version of The DaVinci Code from 2006. Zimmer's involvement in the sequel has just been confirmed by the Gorfaine-Schwartz Agency. Tom Hanks returns as Doctor Robert Langdon in the Dan Brown story which revolves around a terrorist act against the Vatican. Hans Zimmer has also written the music for Ron Howard's other upcoming film, Frost/Nixon. Angels and Demons will be their fourth film together. It's scheduled to premiere on May 15 next year.br>